You cannot use ASIO Insert with Voxal Voice Changer, because it does not support ASIO (at least the free version 3.0.8)!

If you send a Voicemeeter hardware input (your microphone) to B1 then you have to use VoiceMeeter Output (VB-Audio Voice…) as input in Voxal Voice Changer (and other apps that do not support ASIO).To get the processed signal back from Voxal Voice Changer to Voicemeeter Banana you have to use VoiceMeeter Aux Input (VB-Audio Voice…) or a VB Cable (that must be opened as another hardware input in Banana) as output device in Voxal Voice Changer.

To use ASIO insert the processing application has to support ASIO.If it supports ASIO then you have to use Voicemeeter Insert Virtual ASIO (for Banana) or Voicemeeter Potato Insert Virtual ASIO (for Potato) as device in that application and enable Patch Insert in Voicemeeter system settings for the strip you want to process.

If an application uses ASIO Insert then you have to ensure that the input is connected to the output.If it is not connected (in that app) the audio strip in Voicemeeter is blocked if Patch Insert is active (inside Voicemeeter system settings).